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Doctor insights on: Laxatives Before Colonoscopy

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When will the laxatives for my colonoscopy preparation start working?

When will the laxatives for my colonoscopy preparation start working?

Depends : On which preparation you were give by your doctor. Some are very fast as in 30-60 minutes, others take longer, check with your doctor who ordered the prep. ...Read more

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Dr. Charles Cattano
1,988 doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more


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Colonoscopy 13 days ago. 1 bm after laxatives . Is this normal? What to do next.

Colonoscopy 13 days ago. 1 bm after laxatives . Is this normal? What to do next.

Normal: This is likely due top the fact that you had a good bowel prep. I do not know your eating habits, but likely you have constipation. Try drinking more weather and eating 30-40 grams of fiber a day. If this continues consider getting a loon motility study. Talks to your doctor about it ...Read more

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Should the laxatives be taken one day before colonoscopy or on the same day a few hours before the start of the procedure ?

Should the laxatives be taken one day before colonoscopy or on the same day a few hours before the start of the procedure ?

24 Hour Prep: Your GI specialist is supposed to provide you a sheet with instructions to clean your bowel. You need to avoid any solid foods for 24 hours before the procedure. During this time you need to take laxatives till your bowel movements are entirely liquid and free of any residual fecal matter. Drink plenty of liquids during this time, to avoid dehydration. Good luck!. ...Read more

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In leaflet coming with a PEG laxative it say that if you have colonoscopy in evening you can start drinking it in morning, 6 hour before colonoscopy?

In leaflet coming with a PEG laxative it say that if you have colonoscopy in evening you can start drinking it in morning, 6 hour before colonoscopy?

The direction: for preparation for this study differs a bit from Endoscopist to Endoscopist (the GI Doctors who do the testing) FOLLOW His/Her Instructions (Call their office !) HOWEVER the instructions which accompany the preparation materials /medications are usually RELIABLE and this sounds reasonable! Hope this helps ....Dr Z ...Read more

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I'm constantly bloated. went to my gastro..she suggested, colonoscopy, said, was up to me. Not NEEDED, she said to try laxatives when needed. Thoughts?

I'm constantly bloated. went to my gastro..she suggested, colonoscopy, said, was up to me. Not NEEDED, she said to try laxatives when needed. Thoughts?

Possibilities: It could be irritable bowel syndrome (try bentyl) or bacterial overgrowth (consider a course of antibiotics). If you have had pancreatic surgery or drank alcohol excessively before, you pancreas may not be producing enzymes properly (try creon with meals).. Check with your doctor for detail.. ...Read more

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Can the laxative prep for colonoscopy cause gall bladder attacks?

Can the laxative prep for colonoscopy cause gall bladder attacks?

It may: Potentially it could. More likely, though, it may cause colonic spasms, which in the right place could be difficult to tell from gall bladder attack ...Read more

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Colonoscopy prep did not work . Drank 64 ounces and took four laxatives . Did not use the bathroom once . What should I do ? I need this test done

Reschedule Colonosco: Without a good bowel preparation, colonoscopy will not give enough information. Speak to the doctor doing the colonoscopy and see if this should be deferred ...Read more

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I just had a colonoscopy this morning and they found melanosis coli. I look up =abusive use with laxatives.I do not use laxatives. What else causes?

Melanosis coli: If the diagnosis is correct is caused by cascara segrada an ingredient in many over the counter laxatives, softeners and herbal remedies. It causes deposits of pigment in the mucosal cells giving a black or leopard skin appearance to the colon lining instead of the natural pink appearance, it does not pose any medical risk but it does make diagnosis of colon pathology somewhat difficult. ...Read more

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I have to take moviprep laxative for colonoscopy, do I add water and then add powder? Or do I add powder to glass and then water ? Or is either way ok

I have to take moviprep laxative for colonoscopy, do I add water and then add powder? Or do I add powder to glass and then water ? Or is either way ok

Ask Dr.: firstly, ask the doctor who prescribed the preparation or the nurse. Secondly, I am quite sure they must have provided you with written directions... ...Read more

Dr. Mark Pack
592 doctors shared insights

Laxative (Definition)

Laxatives are a ...Read more